Let’s look at a post, say in a shop, or a barn, acting as a vertical cantilever. This means that the base of the post is held rigid (not allowed to rotate), while a lateral (horizontal, or sideways) load is …

Cantilever Post Deflection (Post and Bracket) Read more »

Continuing from Part 1 … Step 6: Determine the external pressure coefficients, GCpf … Section 28.3.2.   For Case 1 we get … roof slope tan-1 4/12 = 18.4° … interpolating between 5° and 20° … interp GCpf per slope, …

Wind Load on a Shop Using ASCE 7-22 (Envelope Procedure) – Part 2 (Horizontal Force) Read more »

Part 1 – Velocity Pressure Let’s consider a shop to be constructed in, say, Latah County, Idaho, near the recently publicized college town of Moscow. The shop will not be a `business’, per se; in other words, people will not …

Wind Load on a Shop Using ASCE 7-22 (Envelope Procedure) (Part 1 – Velocity Pressure) Read more »

Pole barn versus post frame … how to keep the structure from flopping over? Consider a barn, or perhaps a shop, made using timber and `posts’. There are two main ways to keep it from flopping over. One way is …

`a constantly debated topic’ (pole barn versus post frame) Read more »

6 x 6 wood post versus 3-ply 2 x 6 © Jeff R. Filler, May 2022, Pell City (DRAFT) If you are an a professional engineer providing designs (or fixes) for wood-frame construction, sooner or later you will be asked, …

6 x 6 sawn post vs 3-ply 2 x 6 Read more »

E min (c) Jeff R. Filler, Pell City, Alabama, 2022 But First, E apparent and E true `E min’ is calculated wood property used in the design of structural wood members (beams, columns, etc.). It is a derived property, derived …

E min Read more »

E app (`Eee app’, `Eee apparent’, Apparent Modulus of Elasticity) is a design property for wood construction. It comes from the Modulus of Elasticity of the wood (E, MOE, Young’s Modulus). It’s not a `true’, or `pure’ property, and it …

E app (Apparent Modulus of Elasticity) Read more »

As an engineer I tend to design structures from the top down. First the roof loads, which determine rafters, or trusses, or whatever roof framing members. Then the beams/headers/girders supporting the rafters, then the columns or walls supporting the headers, …

… and now for the headers Read more »